DLC3 (Data Link Connector 3)
WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
The vehicle's ECM uses the ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.
HINT:
Connect the cable of the hand-held tester to the DLC3, turn the ignition switch ON and attempt to use the hand-held tester. If the screen displays UNABLE TO CONNECT TO VEHICLE, a problem exists in the vehicle side or the tester side.
If the communication is normal when the tool is connected to another vehicle, inspect the DLC3 on the original vehicle. If the communication is still impossible when the tool is connected to another vehicle, the problem is probably in the tool itself. Consult the Service Department listed in the tool's instruction manual.
TOOL'S INSTRUCTION MANUAL
| Symbol | Terminal No. | Name | Reference terminal | Result | Condition |
|---|---|---|---|---|---|
| SIL | 7 | Bus"+" line | 5 - Signal ground | Pulse generation | During transmission |
| CG | 4 | Chassis ground | Body ground | Below 1 Ω | Always |
| SG | 5 | Signal ground | Body ground | Below 1 Ω | Always |
| BAT | 16 | Battery positive | Body ground | 11 to 14 V | Always |
| CANH | 6 | HIGH-level CAN bus line | CANL | 54 to 69 Ω | IG switch OFF |
| CANH | 6 | HIGH-level CAN bus line | Battery positive | 1 MΩ or higher | IG switch OFF |
| CANH | 6 | HIGH-level CAN bus line | CG | 1 kΩ or higher | IG switch OFF |
| CANL | 14 | LOW-level CAN bus line | Battery positive | 1 MΩ or higher | IG switch OFF |
| CANL | 14 | LOW-level CAN bus line | CG | 1 kΩ or higher | IG switch OFF |